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TY - JOUR AU - V, Thankamani AU - M.S., Lipin Dev PY - 2012/03/02 Y2 - 2025/09/23 TI - Rhinosporidium seeberi proven as a fungus for the first time after a century since its discovery JF - Research in Biotechnology JA - RIB VL - 3 IS - 1 SE - Research Articles DO - UR - https://www.updatepublishing.com/journal/index.php/rib/article/view/2388 SP - AB - The 18S rRNA gene sequencing of a pure microorganism isolated in pure culture from human rhinosporidiosis cases coded UMH.48 and preserved at 4oC, and, the fungal extracts of biopsy from new cases of nasal rhinosporidiosis were done. Both the sequences were compared for the presence any identical regions by BLAST tool. Astonishingly both the sequences showed 100% identity with each other. The sequences were further compared with the sequences present in NCBI database, followed by sequences of specific organisms like <em>Mesomycetozoa sp</em> and<em> Synchytrium sp.</em> Based on the morphological features, life cycle and BLAST analysis the organism UMH.48 was categorized as a Fungus. The sequences of UMH.48 and sequences from the fungus extracts from new tissue biopsies were deposited in Genbank with accession numbers JN807465 and JN807466 respectively. This paper reports the identity of 18S rRNA sequences between the pure, preserved, isolate with those obtained from biopsies of nasal rhinosporidiosis obtained from totally new cases. Our isolate has been tentatively identified as a lower aquatic fungus with 100% alignment with <em>Colletotrichum truncatum</em> and <em>Glomerulla sps</em> and lesser score similarity with <em>Synchytrium minutum</em>. Yet the absence of a perfect sexual phase or any asexual fungal spores, very rare  microscopic morphology, life cycle and remarkable resemblance with members of lower aquatic fungi led us to surmise (also through personal communication with NCBI, Taxonomy expert) that the isolate is a Fungus (unknown) and not an <em>Ascomycete</em>. ER -